[ARM] 3830/1: iop3xx: board support file cleanup

Revamp the iop3xx board support: move the support code for each iop
board type into its own file, start using platform serial and platform
physmap flash devices, switch to a per-board time tick rate, and get
rid of the ARCH_EP80219 and STEPD config options by doing the relevant
checks at run time.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 148 insertions, 0 deletions

diff --git a/arch/arm/mach-iop33x/iq80332.c b/arch/arm/mach-iop33x/iq80332.c
new file mode 100644
index 000000000000..150f3fd5de0b
--- /dev/null
+++ b/arch/arm/mach-iop33x/iq80332.c
@@ -0,0 +1,148 @@
+/*
+ * arch/arm/mach-iop33x/iq80332.c
+ *
+ * Board support code for the Intel IQ80332 platform.
+ *
+ * Author: Dave Jiang <dave.jiang@intel.com>
+ * Copyright (C) 2004 Intel Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/serial_core.h>
+#include <linux/serial_8250.h>
+#include <linux/mtd/physmap.h>
+#include <linux/platform_device.h>
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/pci.h>
+#include <asm/mach/time.h>
+#include <asm/mach-types.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+
+/*
+ * IQ80332 timer tick configuration.
+ */
+static void __init iq80332_timer_init(void)
+{
+        /* D-Step parts and the iop333 run at a higher internal bus frequency */
+        if (*IOP3XX_ATURID >= 0xa || *IOP3XX_ATUDID == 0x374)
+                iop3xx_init_time(333000000);
+        else
+                iop3xx_init_time(266000000);
+}
+
+static struct sys_timer iq80332_timer = {
+        .init           = iq80332_timer_init,
+        .offset         = iop3xx_gettimeoffset,
+};
+
+
+/*
+ * IQ80332 PCI.
+ */
+static inline int __init
+iq80332_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+        int irq;
+
+        if (slot == 4 && pin == 1) {
+                /* PCI-X Slot INTA */
+                irq = IRQ_IOP331_XINT0;
+        } else if (slot == 4 && pin == 2) {
+                /* PCI-X Slot INTB */
+                irq = IRQ_IOP331_XINT1;
+        } else if (slot == 4 && pin == 3) {
+                /* PCI-X Slot INTC */
+                irq = IRQ_IOP331_XINT2;
+        } else if (slot == 4 && pin == 4) {
+                /* PCI-X Slot INTD */
+                irq = IRQ_IOP331_XINT3;
+        } else if (slot == 6) {
+                /* GigE */
+                irq = IRQ_IOP331_XINT2;
+        } else {
+                printk(KERN_ERR "iq80332_pci_map_irq() called for unknown "
+                        "device PCI:%d:%d:%d\n", dev->bus->number,
+                        PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
+                irq = -1;
+        }
+
+        return irq;
+}
+
+static struct hw_pci iq80332_pci __initdata = {
+        .swizzle        = pci_std_swizzle,
+        .nr_controllers = 1,
+        .setup          = iop3xx_pci_setup,
+        .preinit        = iop3xx_pci_preinit,
+        .scan           = iop3xx_pci_scan_bus,
+        .map_irq        = iq80332_pci_map_irq,
+};
+
+static int __init iq80332_pci_init(void)
+{
+        if (machine_is_iq80332())
+                pci_common_init(&iq80332_pci);
+
+        return 0;
+}
+
+subsys_initcall(iq80332_pci_init);
+
+
+/*
+ * IQ80332 machine initialisation.
+ */
+static struct physmap_flash_data iq80332_flash_data = {
+        .width          = 1,
+};
+
+static struct resource iq80332_flash_resource = {
+        .start          = 0xc0000000,
+        .end            = 0xc07fffff,
+        .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device iq80332_flash_device = {
+        .name           = "physmap-flash",
+        .id             = 0,
+        .dev            = {
+                .platform_data  = &iq80332_flash_data,
+        },
+        .num_resources  = 1,
+        .resource       = &iq80332_flash_resource,
+};
+
+static void __init iq80332_init_machine(void)
+{
+        platform_device_register(&iop3xx_i2c0_device);
+        platform_device_register(&iop3xx_i2c1_device);
+        platform_device_register(&iop33x_uart0_device);
+        platform_device_register(&iop33x_uart1_device);
+        platform_device_register(&iq80332_flash_device);
+}
+
+MACHINE_START(IQ80332, "Intel IQ80332")
+        /* Maintainer: Intel Corp. */
+        .phys_io        = 0xfefff000,
+        .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc,
+        .boot_params    = 0x00000100,
+        .map_io         = iop3xx_map_io,
+        .init_irq       = iop331_init_irq,
+        .timer          = &iq80332_timer,
+        .init_machine   = iq80332_init_machine,
+MACHINE_END